Cold outreach doesn't have to be difficult or expensive -- that is -- thanks to Sendia, an outreach tool for Gmail that's free and easy to use. Send a bulk email campaign in seconds.
GetNotify - GetNotify is a free email tracking software solution.
EmailTrackerPro - EmailTrackerPro is an email tracking and spam filter solution.
Bananatag - Find out what happens to your emails after you press send! Add email tracking, attachment tracking, email scheduling and templates to your daily emails.
Mailtrack.io - The best email tracking solution I've found. Free
Mixmax - At Mixmax, our mission is to change how the world communicates. We’re an email productivity platform that helps sales, customer success, and recruiting teams do their jobs better.
Intelliverse Email Tracker - Intelliverse Email Tracker provides insights to increase the productivity of your emails.